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Lately, I’ve spent quite a lot of time playing with my Kindle. The motivation was mostly its sloppiness – after having it for 1.5 year, my Kindle became very slow and unresponsive… I decided to factory reset it. And while doing it, I’ve checked if I maybe the jailbreak of newer firmware is possible (last time I’ve checked over a year ago it wasn’t).
To my big joy, I found these days it’s fairly easy to jailbreak any kindle by downgrading it’s firmware.
But this isn’t the focus of this post. Here I would like to share my experience with enabling ssh access to my Kindle. Why anyone would do that? Kindle is ARM-processor powered computer with Linux installed. So having SSH access, you can setup your Kindle to do lots of useful stuff. But about that, I’ll write in the next posts 😉
Here is how to proceed:

By default, RPi2 limits power supply of USB ports to 0.6A, while most USB drives require more than that. This is why most USB drives cannot be used with RPi2 without external power supply to RPi2. Luckily, given that you have decent power supply (ie I have 2A charger), you can increase USB port max current, by editing `/boot/config.txt`.

IMPORTANT!!! RPi2 allows max 1.2A current through all 4 USB ports combined, so don’t even think about plugging two USB drives!!! This is because the maximum power allowed into the RPi2 is limited to 2A by the fuse (F1) so if one of your USB device draw 1A, then that leaves 1A for the RPi + GPIO + remaining USB devices.

First, check if your drive can be detected without tweaking

sudo blkid

If you see only mmcblk0 entries, this means that your drive is not recognised.